AWS AmazonCloudWatch medium security documentation change

Service: AmazonCloudWatch · 2026-03-19 · Security-related medium

File: AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Library_Nodejs.md

Summary

Updated Node.js runtime from syn-nodejs-3.1 to syn-nodejs-4.0 with security patches applied and documentation restructuring

Security assessment

Explicitly mentions 'Applied security patches' in syn-nodejs-4.0 changes. Security patches typically address vulnerabilities, making this security-related.

Diff

diff --git a/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Library_Nodejs.md b/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Library_Nodejs.md
index 57ccb3d3a..52199e6aa 100644
--- a//AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Library_Nodejs.md
+++ b//AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Library_Nodejs.md
@@ -5 +5 @@
-syn-nodejs-3.1
+syn-nodejs-4.0
@@ -13 +13,23 @@ The naming convention for these runtime versions is `syn-`language`-`majorversio
-## syn-nodejs-3.1
+## syn-nodejs-4.0
+
+###### Important
+
+Starting Synthetics `syn-nodejs-3.1` and later, Synthetics runtime uses the new namespace. Please migrate the canary script to use the new namespace. Legacy namespace will be deprecated in a future release.
+
+  * @amzn/synthetics-core → @aws/synthetics-core
+
+
+
+
+**Major dependencies** – AWS Lambda runtime Node.js 22.x
+
+**Changes in syn-nodejs-4.0**
+
+  * Applied security patches. 
+
+
+
+
+The following earlier runtime versions for Node.js are still supported. 
+
+### syn-nodejs-3.1
@@ -35,2 +56,0 @@ Starting Synthetics `syn-nodejs-3.1` and later, Synthetics runtime uses the new
-The following earlier runtime versions for Node.js are still supported. 
-